What is a Skill?

Learn what agent skills are and how they help long-running agents manage their own context window. A skill is a folder of instructions, scripts, and reference docs for a specific task. Your agent loads only each skill's name and description at startup, then opens the full skill when a task calls for it; this keeps context small, so you spend fewer tokens and make your agent faster. Learn more: → LangChain Academy Deep Agents course: https://academy.langchain.com/courses/foundation-introduction-to-deepagents → LangSmith: https://www.langchain.com/langsmith